./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/nested-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/nested-1.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3baf312ca85439572472b3c02ed304b3157fa97373d6ada535e5a723c6c0219a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:46:28,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:46:28,356 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-12 00:46:28,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:46:28,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:46:28,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:46:28,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:46:28,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:46:28,388 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:46:28,389 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:46:28,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:46:28,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:46:28,391 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:46:28,391 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-12 00:46:28,391 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-12 00:46:28,391 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-12 00:46:28,391 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-12 00:46:28,391 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-12 00:46:28,392 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-12 00:46:28,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:46:28,392 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-12 00:46:28,395 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:46:28,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:46:28,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:46:28,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:46:28,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-12 00:46:28,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-12 00:46:28,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-12 00:46:28,396 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:46:28,396 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:46:28,396 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:46:28,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:46:28,397 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-12 00:46:28,397 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:46:28,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:46:28,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:46:28,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:46:28,397 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:46:28,398 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-12 00:46:28,398 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3baf312ca85439572472b3c02ed304b3157fa97373d6ada535e5a723c6c0219a [2024-10-12 00:46:28,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:46:28,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:46:28,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:46:28,634 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:46:28,635 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:46:28,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/nested-1.i [2024-10-12 00:46:29,788 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:46:29,941 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:46:29,943 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/nested-1.i [2024-10-12 00:46:29,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f3dc3daeb/acdf25658cf2480d9d08310a622c95c1/FLAG5ead66346 [2024-10-12 00:46:30,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f3dc3daeb/acdf25658cf2480d9d08310a622c95c1 [2024-10-12 00:46:30,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:46:30,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:46:30,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:46:30,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:46:30,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:46:30,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbfa33b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30, skipping insertion in model container [2024-10-12 00:46:30,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:46:30,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:46:30,557 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:46:30,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:46:30,580 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:46:30,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30 WrapperNode [2024-10-12 00:46:30,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:46:30,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:46:30,581 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:46:30,581 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:46:30,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,602 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2024-10-12 00:46:30,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:46:30,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:46:30,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:46:30,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:46:30,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,619 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 00:46:30,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,624 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:46:30,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:46:30,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:46:30,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:46:30,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (1/1) ... [2024-10-12 00:46:30,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:30,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:30,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:30,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-12 00:46:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:46:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:46:30,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:46:30,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:46:30,751 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:46:30,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:46:30,904 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-12 00:46:30,904 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:46:30,915 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:46:30,915 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 00:46:30,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:46:30 BoogieIcfgContainer [2024-10-12 00:46:30,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:46:30,917 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-12 00:46:30,917 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-12 00:46:30,920 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-12 00:46:30,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:46:30,921 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 12:46:30" (1/3) ... [2024-10-12 00:46:30,922 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9929b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:46:30, skipping insertion in model container [2024-10-12 00:46:30,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:46:30,922 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:46:30" (2/3) ... [2024-10-12 00:46:30,923 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9929b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 12:46:30, skipping insertion in model container [2024-10-12 00:46:30,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-12 00:46:30,923 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:46:30" (3/3) ... [2024-10-12 00:46:30,924 INFO L332 chiAutomizerObserver]: Analyzing ICFG nested-1.i [2024-10-12 00:46:30,971 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-12 00:46:30,971 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-12 00:46:30,971 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-12 00:46:30,971 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-12 00:46:30,972 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-12 00:46:30,972 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-12 00:46:30,972 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-12 00:46:30,972 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-12 00:46:30,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:30,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:46:30,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:46:30,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:46:30,993 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:46:30,993 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:46:30,993 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-12 00:46:30,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:30,995 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:46:30,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:46:30,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:46:30,995 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:46:30,996 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:46:31,002 INFO L745 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 5#L29true assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 4#L30true assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 7#L31-3true [2024-10-12 00:46:31,003 INFO L747 eck$LassoCheckResult]: Loop: 7#L31-3true assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 12#L32-3true assume !true; 15#L31-2true main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 7#L31-3true [2024-10-12 00:46:31,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,010 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-10-12 00:46:31,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:31,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762422692] [2024-10-12 00:46:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:31,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:46:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:46:31,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash 50037, now seen corresponding path program 1 times [2024-10-12 00:46:31,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:31,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645679376] [2024-10-12 00:46:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:31,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:46:31,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645679376] [2024-10-12 00:46:31,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645679376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:46:31,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:46:31,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:46:31,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720273931] [2024-10-12 00:46:31,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:46:31,132 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-12 00:46:31,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:46:31,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 00:46:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 00:46:31,162 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:31,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:46:31,166 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2024-10-12 00:46:31,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2024-10-12 00:46:31,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:46:31,169 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 8 states and 9 transitions. [2024-10-12 00:46:31,170 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-12 00:46:31,170 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-12 00:46:31,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2024-10-12 00:46:31,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:46:31,171 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-10-12 00:46:31,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2024-10-12 00:46:31,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-12 00:46:31,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2024-10-12 00:46:31,188 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-10-12 00:46:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 00:46:31,192 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-10-12 00:46:31,192 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-12 00:46:31,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2024-10-12 00:46:31,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-12 00:46:31,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:46:31,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:46:31,194 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-12 00:46:31,194 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-12 00:46:31,194 INFO L745 eck$LassoCheckResult]: Stem: 46#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 47#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 48#L29 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 43#L30 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 44#L31-3 [2024-10-12 00:46:31,196 INFO L747 eck$LassoCheckResult]: Loop: 44#L31-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 42#L32-3 assume !(main_~j~0#1 < main_~m~0#1); 45#L31-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 44#L31-3 [2024-10-12 00:46:31,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,196 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2024-10-12 00:46:31,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:31,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443204706] [2024-10-12 00:46:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:31,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:46:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,211 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:46:31,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,212 INFO L85 PathProgramCache]: Analyzing trace with hash 49851, now seen corresponding path program 1 times [2024-10-12 00:46:31,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:31,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517652846] [2024-10-12 00:46:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:31,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:46:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:46:31,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910836, now seen corresponding path program 1 times [2024-10-12 00:46:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097041567] [2024-10-12 00:46:31,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:31,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:31,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:31,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:46:31,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097041567] [2024-10-12 00:46:31,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097041567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:46:31,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:46:31,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:46:31,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810680868] [2024-10-12 00:46:31,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:46:31,363 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:46:31,364 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:46:31,364 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:46:31,364 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:46:31,364 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:46:31,365 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,365 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:46:31,365 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:46:31,365 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration2_Loop [2024-10-12 00:46:31,365 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:46:31,366 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:46:31,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,393 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,432 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:46:31,432 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:46:31,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:31,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:31,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-12 00:46:31,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:46:31,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:31,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:31,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:31,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:31,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-12 00:46:31,466 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:46:31,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:31,571 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:46:31,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:31,577 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:46:31,577 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:46:31,577 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:46:31,577 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:46:31,577 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:46:31,577 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,577 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:46:31,577 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:46:31,577 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration2_Loop [2024-10-12 00:46:31,577 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:46:31,577 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:46:31,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,591 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,616 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:46:31,620 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:46:31,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:31,624 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:31,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-12 00:46:31,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:46:31,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:46:31,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:46:31,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:46:31,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:46:31,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:46:31,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:46:31,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:46:31,643 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:46:31,647 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:46:31,647 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:46:31,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:31,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:31,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-12 00:46:31,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:46:31,651 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:46:31,651 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:46:31,652 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-10-12 00:46:31,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:31,664 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:46:31,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:31,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:46:31,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:31,720 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:46:31,721 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:31,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:31,752 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-12 00:46:31,754 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:31,789 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 17 transitions. Complement of second has 4 states. [2024-10-12 00:46:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:46:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-10-12 00:46:31,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 3 letters. [2024-10-12 00:46:31,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:31,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 3 letters. [2024-10-12 00:46:31,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:31,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 6 letters. [2024-10-12 00:46:31,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:31,795 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2024-10-12 00:46:31,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-12 00:46:31,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 15 transitions. [2024-10-12 00:46:31,797 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-12 00:46:31,797 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-12 00:46:31,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2024-10-12 00:46:31,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:46:31,798 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-12 00:46:31,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2024-10-12 00:46:31,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2024-10-12 00:46:31,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2024-10-12 00:46:31,800 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2024-10-12 00:46:31,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:46:31,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:46:31,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:46:31,801 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:31,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:46:31,815 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2024-10-12 00:46:31,816 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2024-10-12 00:46:31,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-12 00:46:31,816 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2024-10-12 00:46:31,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-10-12 00:46:31,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-10-12 00:46:31,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2024-10-12 00:46:31,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:46:31,817 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-10-12 00:46:31,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2024-10-12 00:46:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-10-12 00:46:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-10-12 00:46:31,818 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-12 00:46:31,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:46:31,819 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-10-12 00:46:31,820 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-12 00:46:31,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-10-12 00:46:31,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-12 00:46:31,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:46:31,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:46:31,822 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-10-12 00:46:31,822 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:46:31,822 INFO L745 eck$LassoCheckResult]: Stem: 137#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 138#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 139#L29 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 134#L30 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 135#L31-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 131#L32-3 [2024-10-12 00:46:31,822 INFO L747 eck$LassoCheckResult]: Loop: 131#L32-3 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 130#L32-2 main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 131#L32-3 [2024-10-12 00:46:31,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,823 INFO L85 PathProgramCache]: Analyzing trace with hash 28695852, now seen corresponding path program 1 times [2024-10-12 00:46:31,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:31,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166041086] [2024-10-12 00:46:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:31,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:46:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:46:31,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1859, now seen corresponding path program 1 times [2024-10-12 00:46:31,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:31,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043841661] [2024-10-12 00:46:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:31,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:46:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:46:31,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:31,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910894, now seen corresponding path program 1 times [2024-10-12 00:46:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:31,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158341057] [2024-10-12 00:46:31,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:31,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:46:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:31,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:46:31,910 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:46:31,910 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:46:31,911 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:46:31,911 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:46:31,911 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:46:31,911 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,911 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:46:31,911 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:46:31,911 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration3_Loop [2024-10-12 00:46:31,911 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:46:31,911 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:46:31,912 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:31,960 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:46:31,960 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:46:31,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:31,962 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:31,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-12 00:46:31,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:46:31,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:31,976 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:46:31,977 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:46:31,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-12 00:46:31,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:31,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:31,993 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:31,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-12 00:46:31,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:46:31,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:32,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-12 00:46:32,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,019 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-12 00:46:32,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:46:32,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:32,045 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:46:32,045 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-2}, {ULTIMATE.start_main_~k~0#1=4}, {ULTIMATE.start_main_~k~0#1=-1}] Lambdas: [3, 1, 1] Nus: [1, 0] [2024-10-12 00:46:32,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:32,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,059 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-12 00:46:32,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:46:32,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:32,071 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:46:32,072 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:46:32,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:32,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,083 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-12 00:46:32,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:46:32,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:32,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:32,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,108 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-12 00:46:32,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:46:32,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:32,218 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:46:32,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:32,223 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:46:32,223 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:46:32,223 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:46:32,223 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:46:32,223 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:46:32,224 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,224 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:46:32,224 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:46:32,224 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration3_Loop [2024-10-12 00:46:32,224 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:46:32,224 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:46:32,225 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,234 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,276 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:46:32,276 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:46:32,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,278 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-12 00:46:32,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:46:32,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:46:32,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:46:32,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:46:32,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:46:32,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:46:32,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:46:32,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:46:32,295 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:46:32,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-10-12 00:46:32,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,308 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-12 00:46:32,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:46:32,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:46:32,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:46:32,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:46:32,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:46:32,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:46:32,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:46:32,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:46:32,322 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:46:32,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:32,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,339 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-12 00:46:32,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:46:32,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:46:32,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:46:32,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:46:32,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:46:32,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:46:32,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:46:32,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:46:32,355 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-12 00:46:32,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-12 00:46:32,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,367 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-12 00:46:32,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:46:32,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:46:32,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:46:32,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:46:32,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:46:32,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:46:32,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:46:32,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:46:32,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:46:32,387 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-12 00:46:32,387 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-12 00:46:32,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,389 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-12 00:46:32,391 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:46:32,391 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:46:32,391 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:46:32,391 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2024-10-12 00:46:32,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-12 00:46:32,402 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:46:32,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:32,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:46:32,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:32,428 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:46:32,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:32,441 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-12 00:46:32,441 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:32,454 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 26 transitions. Complement of second has 5 states. [2024-10-12 00:46:32,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:46:32,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:32,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-12 00:46:32,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2024-10-12 00:46:32,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:32,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-12 00:46:32,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:32,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2024-10-12 00:46:32,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:32,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2024-10-12 00:46:32,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-12 00:46:32,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 18 transitions. [2024-10-12 00:46:32,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-10-12 00:46:32,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-10-12 00:46:32,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2024-10-12 00:46:32,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-12 00:46:32,457 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-10-12 00:46:32,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2024-10-12 00:46:32,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2024-10-12 00:46:32,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-10-12 00:46:32,458 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-12 00:46:32,458 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-12 00:46:32,458 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-12 00:46:32,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2024-10-12 00:46:32,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-12 00:46:32,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-12 00:46:32,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-12 00:46:32,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:46:32,459 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-12 00:46:32,459 INFO L745 eck$LassoCheckResult]: Stem: 210#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~post4#1, main_#t~post5#1, main_~n~0#1, main_~m~0#1, main_~k~0#1, main_~i~0#1, main_~j~0#1;havoc main_#t~nondet1#1;main_~n~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~m~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~k~0#1 := 0;havoc main_~i~0#1;havoc main_~j~0#1; 212#L29 assume !!(10 <= main_~n~0#1 && main_~n~0#1 <= 10000); 207#L30 assume !!(10 <= main_~m~0#1 && main_~m~0#1 <= 10000);main_~i~0#1 := 0; 208#L31-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 209#L32-3 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 205#L32-2 main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 206#L32-3 assume !(main_~j~0#1 < main_~m~0#1); 213#L31-2 main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 214#L31-3 assume !!(main_~i~0#1 < main_~n~0#1);main_~j~0#1 := 0; 204#L32-3 [2024-10-12 00:46:32,459 INFO L747 eck$LassoCheckResult]: Loop: 204#L32-3 assume !!(main_~j~0#1 < main_~m~0#1);main_#t~post3#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 203#L32-2 main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 204#L32-3 [2024-10-12 00:46:32,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:32,460 INFO L85 PathProgramCache]: Analyzing trace with hash 857348446, now seen corresponding path program 1 times [2024-10-12 00:46:32,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:32,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658113931] [2024-10-12 00:46:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:32,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:32,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:32,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:32,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:46:32,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658113931] [2024-10-12 00:46:32,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658113931] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:46:32,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352229156] [2024-10-12 00:46:32,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:32,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:46:32,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,515 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-12 00:46:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:32,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:46:32,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:32,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:32,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:46:32,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:32,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:32,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352229156] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:46:32,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:46:32,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-12 00:46:32,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870763587] [2024-10-12 00:46:32,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:46:32,630 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-12 00:46:32,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1859, now seen corresponding path program 2 times [2024-10-12 00:46:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:46:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139973020] [2024-10-12 00:46:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:46:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:46:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:32,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 00:46:32,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-10-12 00:46:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 00:46:32,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 00:46:32,660 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:46:32,661 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:46:32,661 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:46:32,661 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:46:32,661 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-12 00:46:32,661 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,661 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:46:32,661 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:46:32,661 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration4_Loop [2024-10-12 00:46:32,661 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:46:32,661 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:46:32,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,664 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,669 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,697 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:46:32,697 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-12 00:46:32,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,699 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-12 00:46:32,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:46:32,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:32,712 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-12 00:46:32,712 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-12 00:46:32,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-12 00:46:32,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,727 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-12 00:46:32,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-12 00:46:32,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:32,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-12 00:46:32,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,755 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-12 00:46:32,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-12 00:46:32,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-12 00:46:32,867 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-12 00:46:32,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:32,872 INFO L204 LassoAnalysis]: Preferences: [2024-10-12 00:46:32,872 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-12 00:46:32,872 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-12 00:46:32,872 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-12 00:46:32,872 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-12 00:46:32,872 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,872 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-12 00:46:32,872 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-12 00:46:32,872 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested-1.i_Iteration4_Loop [2024-10-12 00:46:32,872 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-12 00:46:32,873 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-12 00:46:32,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-12 00:46:32,909 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-12 00:46:32,909 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-12 00:46:32,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,911 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-12 00:46:32,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-12 00:46:32,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-12 00:46:32,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-12 00:46:32,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-12 00:46:32,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-12 00:46:32,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-12 00:46:32,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-12 00:46:32,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-12 00:46:32,926 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-12 00:46:32,931 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-10-12 00:46:32,931 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-12 00:46:32,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-12 00:46:32,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:46:32,932 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-12 00:46:32,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-12 00:46:32,934 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-12 00:46:32,934 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-12 00:46:32,934 INFO L474 LassoAnalysis]: Proved termination. [2024-10-12 00:46:32,934 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~m~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2024-10-12 00:46:32,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:32,946 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-12 00:46:32,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:32,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:46:32,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:32,976 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:46:32,977 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:32,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:32,989 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-12 00:46:32,989 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:33,003 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 5 states. [2024-10-12 00:46:33,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:46:33,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-12 00:46:33,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-12 00:46:33,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:33,004 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:46:33,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:33,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:46:33,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:33,039 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:46:33,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:33,055 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-12 00:46:33,055 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:33,066 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 5 states. [2024-10-12 00:46:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:46:33,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-12 00:46:33,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-12 00:46:33,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:33,068 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-12 00:46:33,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:46:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:33,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 00:46:33,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:46:33,124 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:46:33,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:46:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:46:33,144 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-12 00:46:33,144 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:33,157 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 19 transitions. Complement of second has 4 states. [2024-10-12 00:46:33,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-12 00:46:33,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:33,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-10-12 00:46:33,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2024-10-12 00:46:33,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:33,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2024-10-12 00:46:33,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:33,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2024-10-12 00:46:33,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-12 00:46:33,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2024-10-12 00:46:33,160 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:46:33,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2024-10-12 00:46:33,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:46:33,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:46:33,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:46:33,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:46:33,160 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:46:33,160 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:46:33,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:46:33,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 00:46:33,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-10-12 00:46:33,161 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:46:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 00:46:33,161 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-12 00:46:33,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-12 00:46:33,161 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:46:33,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 00:46:33,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-12 00:46:33,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-12 00:46:33,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-12 00:46:33,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-12 00:46:33,161 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:46:33,161 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:46:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 00:46:33,162 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 00:46:33,162 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-12 00:46:33,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-12 00:46:33,162 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-12 00:46:33,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-12 00:46:33,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 12:46:33 BoogieIcfgContainer [2024-10-12 00:46:33,172 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-12 00:46:33,172 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:46:33,172 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:46:33,173 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:46:33,173 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:46:30" (3/4) ... [2024-10-12 00:46:33,174 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 00:46:33,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:46:33,176 INFO L158 Benchmark]: Toolchain (without parser) took 2807.25ms. Allocated memory is still 180.4MB. Free memory was 144.9MB in the beginning and 109.2MB in the end (delta: 35.7MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2024-10-12 00:46:33,176 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 75.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:46:33,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.60ms. Allocated memory is still 180.4MB. Free memory was 144.9MB in the beginning and 132.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 00:46:33,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.27ms. Allocated memory is still 180.4MB. Free memory was 132.6MB in the beginning and 131.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:46:33,177 INFO L158 Benchmark]: Boogie Preprocessor took 25.90ms. Allocated memory is still 180.4MB. Free memory was 131.5MB in the beginning and 129.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:46:33,177 INFO L158 Benchmark]: RCFGBuilder took 286.64ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 146.7MB in the end (delta: -17.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 00:46:33,177 INFO L158 Benchmark]: BuchiAutomizer took 2255.03ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 110.3MB in the end (delta: 36.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-10-12 00:46:33,177 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 180.4MB. Free memory was 110.3MB in the beginning and 109.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:46:33,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 107.0MB. Free memory was 76.0MB in the beginning and 75.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.60ms. Allocated memory is still 180.4MB. Free memory was 144.9MB in the beginning and 132.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.27ms. Allocated memory is still 180.4MB. Free memory was 132.6MB in the beginning and 131.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.90ms. Allocated memory is still 180.4MB. Free memory was 131.5MB in the beginning and 129.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.64ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 146.7MB in the end (delta: -17.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2255.03ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 110.3MB in the end (delta: 36.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 180.4MB. Free memory was 110.3MB in the beginning and 109.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * i) + n) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -1 * j) + m) and consists of 3 locations. One nondeterministic module has affine ranking function (((long long) -1 * j) + m) and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 56 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp73 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-12 00:46:33,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-12 00:46:33,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-12 00:46:33,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE